"""
Check that the invokeai_root is correctly configured and exit if not.
"""
import sys

from invokeai.app.services.config import InvokeAIAppConfig


def check_invokeai_root(config: InvokeAIAppConfig):
    try:
        assert config.model_conf_path.exists(), f"{config.model_conf_path} not found"
        assert config.db_path.parent.exists(), f"{config.db_path.parent} not found"
        assert config.models_path.exists(), f"{config.models_path} not found"
        if not config.ignore_missing_core_models:
            for model in [
                "CLIP-ViT-bigG-14-laion2B-39B-b160k",
                "bert-base-uncased",
                "clip-vit-large-patch14",
                "sd-vae-ft-mse",
                "stable-diffusion-2-clip",
                "stable-diffusion-safety-checker",
            ]:
                path = config.models_path / f"core/convert/{model}"
                assert path.exists(), f"{path} is missing"
    except Exception as e:
        print()
        print(f"An exception has occurred: {str(e)}")
        print("== STARTUP ABORTED ==")
        print("** One or more necessary files is missing from your InvokeAI root directory **")
        print("** Please rerun the configuration script to fix this problem. **")
        print("** From the launcher, selection option [7]. **")
        print(
            '** From the command line, activate the virtual environment and run "invokeai-configure --yes --skip-sd-weights" **'
        )
        print(
            '** (To skip this check completely, add "--ignore_missing_core_models" to your CLI args. Not installing '
            "these core models will prevent the loading of some or all .safetensors and .ckpt files. However, you can "
            "always come back and install these core models in the future.)"
        )
        input("Press any key to continue...")
        sys.exit(0)